Sole-laying machine



E. E. WINKLEY I SOLE LAYING MACHINE May 22, 1923.

Fiied March 22, 1 919 s Sheets-Sheet 1 Filed March 22 1919 5 Sheets-Sheet 5 EfE. WINKLEY SOLE LAYING momma:

Mal y 22, 1923.

' Filed March 22,

5 Sheets-Sheet 4 E. E; wmKLEY sou: LAYING MACHINE May 22,1923.-

Filed March '22, 1919' s Sheets-Shet 5 Patentcd May 22, 1191313). I h r i fi i l lfifi PATLENY ERASTUS E. WINKLEY, O11 LYNN, llIASSACl-IUSEQZTS, ASSIGNOR TO UNITED SHOE MACHINERY COB-PORATIGN, OE PATERSON', NEW JERSEY, A CORPORATION OF NEW JERSEY.

SOLE-LAYING DEAGHINE.

Application filed March 22, 1919. Serial No. 284,377.

2 61t0ll )7il"il 7lttty concern: quickly and the soles are uniformly located Be it known that I, ERASTUS E. WINK- upon different shoes. Lint, a citizen of the United States, resid- With this ob ect in View, one feature of ing at Lynn, in the county of Essex and the present invention consists in the previ- 5 State of Massachusetts, have invented cersion, in a unitary structure, of closely adtain new and useful ln'iprovcments in Soiejaccnt nail driving mechanisms and a sole Laying Machines; and 1 do hereby declare locating device disposed in Working relation the following to be a full, clear, and exto each nail driving mechanism, one of said act description of the invention, such as will locating devices being adapted to operate 10 enable others skilled in the art to which it upon the toe end of a shoe presented thereto,

appertains to make and use the same. to relatively locate the sole and the upper,

This invention relates to a machine for and the other locating device being adapted performing the operation known as sole to operate upon the heel end of the shoe, laying in the manufacture of McKay shoes, subsequently presented thereto, to center the 15 and shoes in which the outer sole is secured heel seat end of the sole with respect to the to the shoe by pegs or nails. upper.

in the manufacture of the above class of in performing the sole laying operation shoes, the sole is adjusted upon the lasted it is desirable that the nail driving mechashoe in the desired position and is secured nisin shall drive a single nail only, at each 20 in place preparatory to the sewing, pegging operation thereof, when either the toe or or nailing operation by a few tacks or nails, heel end of a shoe is first presented to the which are driven through the sole at the machine. After the sole has been secured toe and heel of the shoe and hold the sole -t the too or heel of the shoe against acci in place during the operation of securing it dental displacement, by means of a single to the shoe. A machine having means for nail, it is customary to drive several nails adjusting the toe end and forepart of a sole along the marginal portion of the forepart in the desired position with respect to the or heel end of the sole as the case may be, ripper of a lasted shoe, and for securing said at either side. In the machine of the patent portion to the shoe in adjusted position, is referred to, a single nail only is driven for 5H) disclosed in Letters Patent No. 1,081,355, each depression of the treadle by the operagranted to the applicant on Dec. 16, 1913. tor. In said machine after the first secur- After the sole has been thus located and ing nail has been driven, the sole adjusting temporarily secured in place at the toe and mechanism is withdrawn from working reforepart of the shoe, it is desirable, because lation with the nail driving mechanism so 5 of the flexibility of the unsecured shank that the operator may freely manipulate the portion of the sole to center the heel seat shoe to position it to receive the succeedend thereof upon the bottom of the shoe ing nails, which are then driven in the same before securing it in place. The adjusting manner as the first nail, a separate depresof the heel-seat end of the sole, relatively sion of the treadle being required to effect 40 to the shoe, has heretofore been accomthe driving of each nail. Inasmuch as these plished entirely by hand, requiring considnails are to be located in a row on each side erable skill and care on the part of the of the sole, the operator can easily manipoperator and even then the soles were liable ulate the shoe to receive the nails more to be inaccurately centered. rapidly than they can be driven when the 45 One of the objects of the present inven nail driving mechanism is stopped between tion is to provide a sole laying machine for the driving of each nail, and it will thereshoes of the above class which is of simple fore be seen that the process of driving the and compact cmistruction and by means of succeeding securing nails is unnecessarily which both ends of the sole may be located delayed, in the machine of the above men- 50 and secured in place upon the shoe, in thtioned patent, and that the operator is same machine. In this manner the necesobliged to perform a considerable amount sity of perfori'ning by hand one of the steps of unnecessary labor in repeatedly depress in the sole laying operation avoided, the ing the treadle. complete operation is performed more Another object of the invention is to improve the mechanism for controlling the nail driving operation, so that a single nail only will be driven when the shoe is engaged by either of the locating devices, but thereafter when the locating device has been withdrawn, a series of nails may be driven in rapid succession with a minimum amount of eilort on the part of the operator.

In accordance with this object, another feature of the invention contemplates the provision of means "for causing the withdrawal of the locating device which is in engagement with the shoe and the automatic stopping of the active nail driving mechanism after the first securing nail has beeen driven, and means operated by the withdrawal oi either locating device to prevent the automatic stopping of the asso-' ciated nail driving mechanism, while said device remains in withdrawn position, so that when either locating device is in working relation with a nail driving mechanism, a single nail only will be driven for each depression of the treadle, and when said locating device is withdrawn an intermittent series of nails will be driven so long as the treadle is kept depressed.

The invention further consists in othe novel features of construction, combinations and arrangen'ient of parts hereinafter described and claimed, the advantages of which will be apparent to those skilled in the art from the following description.

In the accompanying drawings illustrating the preferred embodiment of the invention, Figure 1 is a view in side elevation of the machine; Fig. 2 is a view in "front elevation of a portion of the machine, parts of the right hand nail driving mechanism being omitted; Fig. 3 is a fragmentary View partly inside elevation and partly in section of the machine, showing the locating device for the heel end of the shoe in working re lation with its associated nail driving mechanism and locating a sole in position to receive a securing nail at the heel; Fig. l is a top plan view of the machine; Fig. 5 is a detail view partly in plan and partly in section, illustrating particularly the positioning device for the heel end of the shoe and the means for automatically controlling the starting and stopping of the nail driving mechanism; Fig. 6 is a detail view in rear elevation, on an enlarged scale, showing the locating devicev for the heel end of a shoe; Fig. 7 is a detail view showing a section on the line 'Z'7 of Fig. 6; and Figs. 8, 9 and 10 are detail views showing the starting and stopping mechanism for the nail driving devices and part of the automatic controlling means therefor.

In the illustrated embodiment oi: the in vention the two nail driving mechanisms, which are indicated at 12iand 14:, correspond in construction to the nail driving mechanism which is illustrated and described in the Patent No. 1,081,355, previously referred to, and are similar to the corresponding mechanisms of well known machines commonly employed for laying the soles of Mc- Kay shoes. The nail driving mechanisms 12 and 14: are supported upon similar upright extensions 16 and 18 or a standard 20, upon which the other operating parts of the machine are mounted. The two locating devices, one of which acts upon the toe end of the shoe and the other upon the heel end thereof, relatively to position the sole and the upper, are indicated generally at 22 and 2t respectively. The locating device 22 is carried upon a support 26 which is pivotally mounted, at its lower end on a bracket 28 that is secured to the standard 20. The locating device 22, together with its support 26, is identical in construction, arrangement and mode of operation with the locating device and the support therefor which is illustrated and described in the patent referred to, and the same provision is made for holding it in working relation with the nail driving mechanism and withdrawing it therefrom, as in said patent.

In performing the sole laying operation by means of the present machine, the toe end oi the shoe with the sole held against the bottom thereof by the operator, is first presented to the locating device 22, and the il'orepart of the sole and upper are relatively positioned in the same manner as described in the above mentioned patent. Thereafter, upon the depression of a treadle 30, the shoe is securely clamped in position for the nail. driving operation by means of mechanism associated with the locating device 22, and a single securing nail. is driven, after which the nail driving mechanism is automatically stopped, and the device 22 is withdrawn from the shoe, all as set forth in said patent.

In the present construction, however, when the treadle is again depressed to start the nail driving n'iechanism, the nail driving operation continues intermittently so long the treadle is kept depress-ed and the succeeding securing nails are driven in rapid succession without further action on the part of the operator other than manipulating the shoe so that the nails will be driven in the desired positions along thcmarginai' portion of the forepart of the shoe, In order that series of nails thus be successively driven, controlling means is provided, which is rendered operative by the rearward movement of the support tor the locating device 22, and serves to prevent the automatic stopping of the nail driving mechanism. This controlling'means is identical in construction and mode of operation with the means employed for preventing the automatic stopping of the nail drivin, mechanism 1 which operates upon the heel and 38 (Figs. 1

end of the shoe, and the description, hereinafter contained, of the latter mechanism will suliice for both. After the desired number of nails have been driven properly to secure the torepart oi the solo in place, the nail driving operation is stopped by the release of the treadle 30 and the operator is ready to present the heel of the shoe to the locating device 24, in order that the heel seat end of the sole may be centered upon the bottom of the shoe and the shoe so located with respect to the nail driving mechanism 14 that the first securing nail-will be driven approximately on the medial line of the sole and at the proper distance from the rear edge thereof.

By reason of the juxtaposition of the two sets oi locating devices and 24, the positioning oi the shoe for the operations to be performed upon it after the sole has been located and secured at thetoe end of the shoe, may be conveniently accomplished by the operator merely by turning, end for end, the shoe which he is holding, and then presenting it to the device 'Qel. As already stated, it has heretofore been the practice to adjust the heel-seat end of the sole by hand, after the toe end or" the sole has been located, and secured in place. In this way the accuracy of the operation is dependent entirely upon the skill of the operator and the soles liable to be non-uniformly located at the heel end thereof, upon different shoes. 'llilOl'GOYO'i' such a method involves additional handling of the shoe and unnecessarily delays the sole laying operation. It will be apparent that the above disadvantages are obviated by means of the present machine with its closely adjacent. arrangement of the locating devices.

In order to permit the locating device 24 for the heel end of the shoe to be swung into and out of working relation with the nail driving mechanism l i, said locating device is carried upon afsupport 32 which is biiurcated at its lower end. as indicated in Fig. 2, and is pivotally mounted on pivots 3 1- between two arms of a bracket 28 on the standard 20. The support 32 is held in working relation with the nail driving mechanism 14 by means of a toggle com'prisinglinks 86 and 3) which are connected by a pivot 40. The arms of the link 38 are pivoted at their rear ends upon a pivot pin 4L2 which extends through a bracket on the extension 18 of the standard 20 and the two side members oi": the link are pivotally connected at their "forward ends. with the support by pivot screws ist. A. shaft 46 (Fig. 3) is mounted in the side the link and carries a trip lever 4-.8 be tween said side members. The underside of the lever 48 at the rear oi the shaft 46 is "ed to en: e a op 50 on the link 36, sure oi the lever at the rear members of of the stop 50 is arranged to be engaged by an ad ustable stop screw 52 carried by the link 88 and arranged in front of the pivot 40. The trip lever a8 andthe stops 5i) and 52 thus form stop devices for limiting the downward movement of the pivot d0 of the toggle when the toggle is straight, so that the toggle will act as a brace to hold the support 32 in working relation with the nail driving mechanism .l l against tension ot' springs 5 which tend to swing the support rearwardly and thus move the locating de vice 24, carried on its upper end, out of working relation with the nail driving mechanism. The means just described is similar to the means employed for a like purpose in the machine of the patent hereinbefore referred to.

The centering oi the sole at the heel of the shoe is accomplished by means of the locating device 24 which is mounted upon a head 56 (Figs. 2 and 6) at the upper end of the-support 32, and comprises a pair of centering gages 58 arranged to embrace the heel end of the upper, and a pair of centering gages 60 arranged to embrace the heel end of the sole, when the shoe is presented to the device by the operator. On each of the gages 60, above the face which engages the edge of the sole, is formed an inwardly projecting lip (52, which is adapted to engage the top of the sole and maintain the edge thereof in alinement with the face oi the lVhen the sole is pressed upwardly against the lips 62 by the operator, its upper surface is maintained by means of. the lips in perpendicular relationship with the nail throat of the nail driving mechanism. A. back rest 64 5) is provided against which the shoe is held during the driving of the first securing nail and which serves to locate the shoe longitudinally with respect to the nail throat.

In order that the two pairs of centering gages 58 and 60 may act uniformly to position the heel ends of the uppers and soles, respectively, of diflerent shoes, and may also automatically accommodate themselves to variations in the widths of different uppers and soles respectively, the individual members of each pair of centering gages are held yieldingly in position and are connected to move in unison. In the construction shown, the centering gages 58 and 60 are in the form of levers, the front ends 01"- which are shaped to engage the opposite sides of the heel end of a shoe upper and sole, respectively, and the rear ends of which are pivotally supported upon the pivots (3-3. The 58 are connected to move concurrently by intermeshing segments 66, formed on their rear ends, and are held yieldingly in position by a spring 68. The

60 are arranged to move independently of the gages 58 and are connected to move together by intermeshing segments 70,

formed on their rear ends, and are held yieldingly in position by a spring 72.

opposing gage levers when in their normal.

position. This means, in the construction shown consists of an adjusting lever 74 2, 8, 6 and 7) which is fulcrumed on a stud 7 6 that is carried by the head 56. A arm 78 on one of the gages 60 is held by means of the spring 7 2 in engagement with the upperend of the lever 74 and an up standing lug 80 which projects from the rear of one of the levers 58 is held by means of the spring 68 in engagcinont with a lug 82 projecting rearwardly from the correspending lever 60. v VVith this construction. when the adjusting lever 74 is operated by means of a handle 84 that is for'medat its lower end, the spaces between the opposing surfacesof the gages 58 and 60 may be ,varied. A spring-pressed detent 86 which pivotally mounted on the handle of the lever 74 and arranged cooperatively to en gage one of a series of notches in a disk '88 that is fixed tothe stud 76, serves to lock the lever 74 in its adjusted position and determine the normal positions of both sets of gages.

The centering of the heel end of the sole with respect tothe upper is accomplished by introducing the shoe between the opposing centering gages 58 and 60. The

shoe is pressed upwardly by the operator so that the bottom of the sole is kept in contact on both sides with the overlying lips 62 on the gages 60, and is advanced .l; etween the gages until the heel end of the shoe engages the back rest 64. The centering gages and the back rest are so arranged, with respect to the nail driving mechanism, when they are in Working relation .with the latter, that the heel end of the shoe is properly positioned to receive the first securing nail. The lips 62, on the. gages 60, by engagement with the bottom of the sole, determine the transverse angular position of the shoe sovthat the nails will. be driven perpendicularly through the sole.

The nail driving mechanism 14 is driven by means of a belt 90 (Fig. 4) which passesover a loose pulley 92 on the main shaft 94 thereof, and over one face of a pulley 96, that is loosely mounted on; the main shaft of the nail driving mechanism 12 and is continuously driven from a suitable source of power by means of a belt 98 which passes over another face of said pulley. In order that only a single securing nail may be driven when the locating device 24 is in working relation with the nail driving mesh anism, it is preferred to employ a starting and stopping mechanism of the character illustrated in Figs. 8, 8, 9 and 10. As shown in these views the pulley 92 constitutes one member of a friction driving clutch for the nail driving mechanism. The other member of the clutch is indicated at 100, and the clutch members are adapted to be en a ed I t) by the downward movement of an operating wedge 102, which is bifurcated to straddle the main shaft 94, and to be disengaged upon an upward movement thereof. The operating wedge 102 is carried by the upper end of a frame 104, the lower end of which is provided with a sleeve 106 surrounding an operating rod 108 and guided in a bearing 110 in a bracket 112 that is secured to the extension 18of the standard 20. The operating rod 108 is connected by means of a link 114 (Fig. 1) to a treadle 116 which is pivotally mounted at 118 (Fig. 1) on the base of the standard 20 and is normally held in raised position by a spring 120. A spring 122 is interposed between a collar 124 on the operating rod 108 and the lower end of the sleeve 106, andtendstoforce the wedge carrying frame 104 upwardly with relation to the operating rod. The frame 104 carries a roll 126 near its upper end, which is ar ranged to ride against a cam 128 on the driving shaft of the nail driving mechanism.

Then the parts are in the position for depressing the treadle and starting the machine, as shown in Figs. 1 and 2, the lower part of the. cam 128 is above the roll 1.26, and the frame 104 and the rod 108 are locked togetherby a latch 180 which is pivoted on the frame,'and is so arranged that its upper end engages a collar 132 on the rod 108, as indicated in Fig. 8. Now when the treadle 116 is depressed, the frame 104 is drawn down with the rod 108 so that the wedge 102 effects the engagement of the members of the driving clutch, the driving shaft 94 is rotated and a single nail is driven. Tmmediately after the driving shaft 94 starts to rotate the high part of the cam 128 rides over the roll 126 so that the frame 104 is pre vented from rising until after the nail driving operation is completed. Immediately after the cam 128 thus locks the frame-104 .in its depressed position, the high part of the cam rides against a roll 184 on the upper end of a bell crank lever 136 which is pivoted on the frame 104, rocking the lever about its pivot. This movement of the lever forces downward a rod 138 which is pivotally con-.

nected with the lower end of the lever and has its lower end arranged to be normally held in engagement with a shoulder 140 on the latch 130 by means of a spring 142 which connects the rod and the bell crank lever in such a manner that it also serves to hold the roll 184 on the lever 136 "against the. cam 128. The latch 130 is thus disengaged from the collar 132 and the continued downward noveinent of the rod 138 carries a cam surface Llet on the rod against the latch so that the lower end of the rod is disengaged from the shoulher 1 10. As soon as the high part of the 12S passes beyond the roll 126, the frame 10-1 is moved upwardly by the spring 122, raising the wedge 102 so that the clutch disengaged.

Before the nail driving iechanism can be again thrown into operation, the treadle 116 must be released. lVhen the treadle 116 is released the rod 108 moves upwarely into the position indicated in Fig, 8, and the latch 130 again engages the collar 132 on the rod, locking the frame 10 1 and the rod 108 together so that the frame will be drawn down upon the succeedi depression of the treadle. es thus far described, the construction and arrangement of the operating wedge 102, the wedge carrying f ame 10 ito gether with the associated parts, and the manner in which they are operated is similar to the construction, arrangement and mode of operation of like parts in the patent previously referred to.

After the heel end of the sole has been located and secured against accidental dis placement by the driving of a single securing nail at the end of the heel, the locating device 24 is automatically withdrawn, leaving the space below the nail driving IIiGCllZHilSIH unobstructed in order that the shoe may be readily manipulated by the operator in the usual manner while the'succeedi-ng securing nails are being driven alon the marginal portions of the rear part of the sole.

In the construction shown. means is provded for breaking the toggle which holds the support 32 in its advanced position, upon the releasing of the treadle 116, so that the support and the locating devices carried thereby are automatically swung back out of the way by the springs 54. The means for thus breaking t e toggle is similar to corresponding means whichis described in the patent referred to. and comprises a dog 14:6, (Figs. 1, 2 and 3) arranged to operate upon the forward end of the tripping lever 4-8. The dog 1&6 is pivoted on sleeve 148 which is secured near the upper end of a rod 150 which extends through bearings 152, that are formed near the upper and lower ends of the support 32 and is pivotally connected by a pin and slot connection 154 to the rear end of a lever 156which is ful crumed at 158 in the bracket The forward end of the lever 156 is connected by means of a link 160 with the treadle 114. The dog 146 is held yieldinglyin position with its lower end projecting, as indicated in Fig. 3, by a spring surrounding its pivot. When the treadle 116 is depressed to start the dog 1 16 strikes the front end of the trip lever 48, rocking it onits pivot so that the rear end of the lever, acting upon the stop crew 52, forces the front end of the link 38 of the toggle upwardly, thus breaking the toggle so that the spring 5 1 acts quickly to swing the support 32 back towards the standard 20, as shown in Fig. 1. This movement of the support withdraws the locating device from the shoe, which is left in the hands of the operator in position for further manipulation in positioning it for driving the succeeding securing nails.

After the locating device has been withdrawn, the operator again depresses the treadle 116 and starts the nail driving mechanism for the purpose of driving the sues ceeding nails which are to secure the heel seat and shank portion of the sole in place,

During the driving of these nails, the shoe being supported only by means of the operators hands, may be readily manipulated so that the nails may be driven in the desired locations in the sole. In order that the nails may e driven rapidly, it is desirable that the nail driving mechanism shall now be operated to drive a series of nails successively by means of a single depression of the treadle. To this end means is provided which operates automatically when the l eating devices are withdrawn, to throw the ment with the latch 130, and which holds tr e rod away from the latch so long as the treadle remains depressed, and the locating devices are allowed to remain in withdrawn position.

The means for rendering the latch re rod inoperative consists of a curved le 162 (Figs. 6, 9 and 10) vwhich pivoted at 16 on the wedge yi frame 104; and is operativcly connecter i. by "eans of link which has, upper end, a universal joint onnection with the lever a bell crank le e. 170, which is fulcruined at 1'52 in a bracket on the standardQfi and one arm of which is connccted'by a universal joint 17 1.- with the lower end of the link 166. and a which connects the othei. arm of the bell crank lever 176 with the support at 178.

The lever 162 is arranged to be swung; downwardly by means of the connections just described, when the support with drawn to throw the latch release rod 138 out of operativerelation with the latch 130. For this purpose the lever 162 carries a roll 180 at it free end which projects through a slot 182m the frame 10a and is. adapted to 32 is permitted to remain in its rearward position, and the latch 130, remaining in en igagenient with the collar 132, the nail driving operation will continue intermittently so long as the operator lreepethe treadle depressed. After the required number of nails have been driven, the treadle is released and as it is raised by the spring ,120, the wedge carrying frame 104 is also raised and the clutch is disengaged so that the nail driving operation is stopped.

' When another sole is to be operated upon by the nail driving'mechanisrh 14, the support 32 is drawn forward into the position indicated in Fig; 3, thus straightening the toggle which acts to hold the locating device'fZ in working relation with the nail driving mechanism 14. For convenience in drawing forward the support 82, handles 184: are provided upon the side members of the link 36 of the to le, below the pivotal can 1 connections between the link and the support 32.

It will be seen that by providing, in a single machine, means for locating the heel end of a sole, as well as the toe end thereof, relatively to the shoe, the entire sole laying operation may be performed by the operating instrumentalities of the machine, as the shoe is presented thereto by the operator, and the operation is consequently. performed. more accurately and quickly than heretofore.

While it' is preferred to embody the invention in a machine having-the specific. construction and arrangement of parts herein shown and described, it will be understood that such construction and arrangement are not essential except so far as specified in the claims and may be modified without departing from the spirit and scope of the invention.

Having described the invention, that which is claimed as new is 1. A shoe machine having, in combination, a device for locating or positioning an article in a predetermined manner and adapted for withdrawal from the article operated upon after it has performed its locating function, and nail driving mechanism arranged to drive a single nail into the article when the locating device is in operative position and automatically to drive a series of nails into thearticle when the locating device is withdrawn. a i

2. A sole laying machine having, in combination, a device for locating a sole on the bottom of a shoe adapted to be withdrawn from the shoe after ithas performed its locating function, and nail driving mechanism arranged to drive a single securing nail through the sole when the locating device is in operative position and automatically to drive a series of nails therethrough when locating device is withdrawn. A, sole laying'machine having, in combination, a device arranged to locate a solo on the bottom of a shoe and adapted to be thereafter withdrawn from theshoe, nail driving mechanism, means arranged to operate automatically when the locating device in operative position to stop the nail dr ving operation after a single nail has been driven,

and means actuated by the withdrawal of the I drive automatically a series of nails into the article only vvhenthe locating device is withdrawn.

i 6. A sole laying machine having, in combination, a device for adjusting a sole .on

the bottom of a shoe in position to be se-' cured thereto, nail dr iving mechanism, and controllable means for causin a series of nails tobe driven to secure the sole in ad- 'justed position.

7. A machine ofthe class described having, in combination, fastening inserting means, a treadle for initiating operation of the machine, and means arranged so that displacement of the treadle will alternatively cause the machine either to operate to drive a single fastening or to continueto drive fastenings as long" as the tread le remains displaced. 2 v i 8. A machine of the class described having, in combination,"means for operating upon shoes, a gage for locating the shoes in'a predetermined position with respect to the operating means, and 'meaiis" operable alternatively for causing "the operating means to operatethrough 'a "single cycle of operation and, then to come to rest or to operate through a series o fcycles of opera tion.

9. A machine of the class described having, in combination, means for relatively positioning a plu'rality of shoe parts, means for operating uponfthe shoe parts, andc'ontrolling means f16rthe operating means arranged to cause machin ej to "operate through a singlecycle of operation nd then to come to rest'when" operation of "the Inachine is initiated with the positioning means in operative position and to cause the machine to operate through a series of cycles of operation when operation of the machine is initiated with the positioning means out of operative position. I

10. A fastening inserting machine having, in combination, means for inserting fastenings, a clutch arranged to transmit power for the operation of the machine, clutch controlling mechanism including a latch ar ranged by its dispalcement to cause the clutch to be thrown into inoperative condition, and means operable alternatively to cause the latch to be thrown out of operative position before the completion of the first cycle of operation when the machine is started or to cause the latch to remain in operative position during a series of cycles of operation.

11. A machine of the class described having, in combination work positioning means movable to operative and inoperative positions, a clutch for controlling the performance of an operation upon the work, clutch controlling means including a latch ar ranged when in operative position to permit the machine to operate through a series of cycles of operation and when moved to inoperative position to causev the machine to come to rest at the conclusion of the cycle of operation during which it is moved and connections from the positioning means to the latch to cause the latch to be moved to inoperative position before the conclusion of the first cycle of operation when the machine is started with the positioning means in operative position and to cause the latch to remain in operative position to permit the machine to operate through a series of cycles of operation when the machine is started with the positioning means out of operative position.

ERASTUS E. W INKLEY. 

